Dynamic Price Competition with Consumption Externalities

The dynamic price competition in a horizontally differentiated duopoly when consumers value previous market shares is analyzed. The conditions for the existence of stable Markov-Perfect Equilibrium (MPE) in linear strategies are established. When they exist, the optimal pricing policies suggest that a firm with a higher previous market share charges a higher price, all else equal. It is possible to observe pricing below cost for some periods. In the steady state, the MPE leads to a more competitive outcome (lower prices) than the case where there are no consumption externalities. The model can produce outcomes where the steady state is reached very slowly which provides an alternative explanation for slow emergence of competition when entrants face an established incumbent: It may be due to persistence in consumer tastes.     

Price Discrimination and the Cruise Line Industry: Implications for Market Definition,Competition, and Consumer Welfare

This article extends the price discrimination literature and applies it to market definition and competitive effects analysis in recent mergers in the cruise line industry. In that industry, short run output is fixed. If firms want to increase price and restrict output to price‐insensitive customers, they have to increase the output and lower price to the price‐sensitive customers. We show that with fixed output (1) it is in firms’ interest to engage in price discrimination, (2) firms have increased ability to engage profitably in price discrimination as the intensity of competition decreases, and (3) the average price of price‐sensitive and ‐insensitive consumers increase with reduced competition. Unlike the economists at the Federal Trade Commission, our analysis suggests that cruise lines engage in third‐degree price discrimination. Moreover, the cruise industry could be a separate market and a reduction in the number of competitors might raise average prices.     

Why offer lower prices to past customers? Inducing favorable social price comparisons to enhance customer retention

Price discrimination policies vary widely across companies. Some firms offer new customers the lowest price; others give preferential prices to their past customers. We contribute to the literature on price discrimination in behavior-based pricing by exploring how customers’ social price comparisons, i.e., comparing one’s price to that received by similar peers, impact the optimal structure of price discrimination. Social price comparisons have a negative (positive) impact on customers’ transaction utility if the price charged to past customers is higher (lower) than a new customer’s price. Using an analytical model with vertically differentiated firms, we show that a firm with relatively large market share will reward its past customers with relatively low prices when social price comparisons have a sufficiently large impact on utility. Furthermore, we find that social price comparisons lead to a relaxation of the price competition for new customers. Thus, both firms can earn higher profits when such comparisons are made than when they are absent. We also examine how other factors, such as horizontal competition and strategic customers, interact with social price comparison concerns to impact pricing strategies. Finally, we show how pricing behavior differs when price comparisons are based on historic reference prices rather than on peers’ prices.     

Discriminatory Prices,Predation and Signal-Jamming in a Horizontal Differentiation Model

We study the effects of predation in an asymmetric duopoly model à la Hotelling in which the incumbent is able to price discriminate while the entrant sets a uniform price. We show that when the discount factor is high (low) enough and the incumbent accommodates entrance the incumbent initially sets a uniform price (discriminatory prices) and then engages in price discrimination. Under certain conditions, the entrant prices aggressively in order to discourage predation from the incumbent: predation actually does not occur and all equilibrium prices are lower with respect to the case in which the threat of predation is absent. In a T-period model, we derive conditions under which the equilibrium prices increase over time until they stabilize at the level that would result in the absence of the threat of predation.     

To Price Discriminate or Not: Product Choice and the Selection Bias Problem

In this paper, we investigate a gasoline station's incentive to price-discriminate by selling full-service gasoline as well as self-service gasoline. Unlike previous research, we explicitly model a firm's incentive to price discriminate by choosing to be either single-product or multi-product as a function of market and station characteristics. This allows us to make two contributions to research in the area: First, we highlight the importance of accounting for self-selectivity considerations that can arise in an empirical analysis of price discrimination that is based on market data. Second, we are able to show how the product and pricing choices of firms depend upon the market characteristics.Using cross-sectional survey data on prices, station and market characteristics for 198 gasoline stations in the Greater Saint Louis area, we estimate a switching regression model of station decisions. Specifically, we employ a binary probit framework that models a station's decision to price-discriminate through the choice of the station-type as a function of market and station characteristics. We then estimate conditional linear regressions with self-selectivity corrections for the station's choice of prices. We show that incorrect inferences about the incentive to price discriminate and about the differences in the prices charged between single-product and multi-product stations would result if the endogeneity in the choice of the station-type were ignored in the estimation. The empirical analysis shows that a larger income spread in the market implies a greater likelihood of the gasoline station being multi-product. In addition, we have support for the various within firm and across firm price differentials as predicted by the theory of price discrimination.     

Asymmetry in mobile access charges: is it an effective regulatory measure?

This paper analyses the regulation of the market of voice call termination on mobile networks, by considering the remedy of asymmetric access charges and the hypothesis of discriminatory retail pricing. In the two way interconnection, the operators revenue depends on two factors: the retail price and the access charge. If the retail prices are different between calls that terminate on the same network (on-net) and calls that terminate on the rival network (off-net), the competition is more complex, involving positive networks externalities for the incumbent operator. In order to reduce the competitive disadvantage for new entrants and smaller operators many European regulation authorities have introduced the remedy of asymmetric access charges. This paper is aimed at analysing the effectiveness of this regulatory measure, assuming that operators are differentiated in terms of brand loyalty and cost structure.     

Sunk Costs and the Entry Decision

This paper considers the role of sunk costs in the decision to enter a market. Its goal is to provide a policy-relevant approach to the question: when are sunk costs so great as to serve as a barrier to entry? To do this, the model presented nests both a model of pure hit-and-run entry and a simple “lottery-ticket” model of long-term entry in which the entrant knows that entry may or may not ultimately prove successful. It illustrates clearly the strategic differences between sunk and nonsunk fixed costs. The paper also considers the incumbent’s problem of choosing between entry deterrence and accommodation. Finally, out of this model comes a measure of the height of the sunk cost barrier to entry that may be useful for competition policy purposes.     

Can Mergers to Monopoly,Price Fixing,and Market‐Division Agreements Raise Welfare?

Naked market division, price fixing agreements and mergers which result in dominant positions have long been opposed by the courts and the government because of the high likelihood that they will result in a reduction in output and an increase in price. We show that the opposite may be true if the market is characterized by marketing spillovers. When marketing investment is required to educate consumers about the general capabilities or qualities of a product, marketing efforts by one producer will benefit rival producers. A theoretical model of these types of markets shows that marketing spillovers can forestall entry altogether or force incumbent firms to engage in ‘limit marketing’ that leaves the market underserved from a welfare‐maximizing perspective. Under these circumstances, market output and social welfare are potentially raised not only through horizontal agreements among competitors, but also through cost‐raising strategies and commitments to predatory behavior by incumbent firms.     

To Bundle or Not to Bundle: Firms’ Choices under Pure Bundling

We examine the economic implications of pure bundling under the settings of monopoly and duopoly. We show that under monopoly and pure bundling of goods with independent demands, the bundled price is strictly less than the sum of the unbundled prices. In the setting of duopoly and Nash prices, we examine whether bundling can be used as a tool to deter entry. In contrast to the findings of previous studies, we show that with low entry costs, entry is deterred by unbundled as opposed to bundled sales. With high entry costs, however, the incumbent chooses to bundle.     

Price formation in channels of distribution with differentiated products: Theory and empirical evidence

This paper presents a theoretical and empirical study of price formation in markets where goods differ in two attributes, perceived quality of each variety, and service provided by the store where the good is sold. Price competition in the vertically differentiated market is modeled as a two-stage game where manufacturers choose the contract that determines wholesale prices, and retailers choose consumer prices. One important novelty of the paper is that it contemplates competition between brands of different quality in the same store, and competition between brands of the same quality sold at different stores. This is in fact the situation observed in the domestic detergent market and the predictions of the model can be used to guide the empirical analysis of the data available for such market in the area of Barcelona, Spain.     

Exchange‐rate Misalignments in Duopoly: The Case of Airbus and Boeing

We examine the effect of exchange‐rate misalignments on competition in the market for large commercial aircraft. This market is a duopoly where players compete in dollar‐denominated prices while one of them, Airbus, incurs a large fraction of its costs in euro. We estimate price elasticities for big aircraft, and construct a simulation model to investigate how companies adjust their prices to deal with the effects of a temporary misalignment and how this affects profit margins and volumes. We conclude that, due to the duopolistic nature of the aircraft market, Airbus will pass only a small part of the exchange‐rate fluctuations on to customers. Moreover, due to features specific to the aircraft industry, such as customer switching costs and learning‐by‐doing, even a temporary departure of the exchange rate from its long‐run equilibrium level may have permanent effects on the industry.     

Tie-in contracts with downstream competition

A tie-in contract has frequently come under scrutiny for its role as an exclusionary device. A firm that is a monopolist in a primary market can utilize such contracts to exclude a more efficient rival in a secondary market. When the firms sell through competing retailers, the leveraging firm may offer tie-in contracts to the retailers inducing them to purchase both primary and secondary products entirely from it such that the rival is excluded. We examine whether such tie-in contracts are profitable for an incumbent firm under different conditions of (i) the ability to commit to prices by the upstream firms and (ii) downstream competition among the retailers. We show that when retailers compete in prices, then regardless of whether the entrant is able to commit to its own prices, an exclusionary tie-in strategy is profitable (not profitable) for the incumbent when it is able (unable) to commit to prices. However, when retailers compete in quantities, the entrant’s commitment ability does matter. Specifically, an exclusionary tie-in strategy (i) may be unprofitable for an incumbent when both upstream firms are able to commit to their prices, depending on the degree of cost advantage of the entrant; (ii) is always profitable when it alone can commit to its price; and (iii) is unprofitable when both upstream firms cannot commit to their prices. Our results extend to situations where the products are complementary or substitutes and where the retailers may be asymmetric in nature.     

Product-Market Competition in the Water Industry: Voluntary Non-discriminatory Pricing

Since franchise bidding in the piped water industry is problematic due to extensive investment requirements, product-market competition or common carriage is a valuable alternative for the introduction of competition. This paper analyses product-market competition by considering a simple model of interconnection where competition is introduced between vertically integrated neighbouring water suppliers. The model contains water markets specificities such as local and decentralised networks and related difficulties of regulating access charges. Even without any regulation, we show that: (i) an inefficient incumbent will give up its monopoly position and lower the access price far enough so that the low-cost competitor can enter his home market; (ii) efficiency of production will rise due to liberalisation; and (iii) in contrary to prejudicial claims, investment incentives are not destroyed by the introduction of competition for the market. Investments of low-cost firms may even increase.JEL classification: L95, L43, D21, Q25     

Virtual operators in the mobile industry: a techno-economic analysis

For a company planning to become a mobile operator, two alternative ways to enter the market exist. In addition to the traditional way of acquiring a spectrum license and building a mobile network, market entrance is also possible by becoming a virtual operator and utilizing the existing networks of incumbent operators. Potentially, virtual operators will have an important role in shaping the mobile market structure and competition. In this paper, techno-economic modeling methods are used to analyze the position of virtual operators in the mobile communications industry. Four alternative virtual operator scenarios are constructed and analyzed using a linear, deterministic, and quantitative techno-economic model. The results highlight the importance of wholesale contracts with incumbent mobile network operators in determining the virtual operators’ business profitability. Unbalance in termination prices between fixed and mobile networks is shown to give incentives for virtual operators to invest in their own network infrastructure.     

Entry deterrence/accommodation with imperfect strategic thinking capability

Both through empirical research and laboratory experiments it has been shown that managers are heterogeneous in strategic thinking-i.e., not all the managers can accurately conjecture their competitors’ behavior and actions. In this paper, we examine the entry deterrence/accommodation strategy of an incumbent firm facing a potential entrant that may behave less strategically than the incumbent in the way of conjecturing competitors’ actions and beliefs. We adapt the Cognitive Hierarchy model to capture this heterogeneity among the managers of the entrant firm and the incumbent firm. Surprisingly, we show that the incumbent can deter entry by investing in expanding the market size and the competition may increase the incumbent’s incentive to invest in market expansion. If entry does occur, the market expansion in our model also benefits entrant comparing to the case without market expansion. This feature of our result sets it apart from the standard result in the entry deterrence literature, which tends to suggest that incumbent has to either over-invest in actions harmful to entrant if entry occurs. In our model investing in expanding the market size makes the entrant to update its belief about the incumbent’s strategic thinking capability downward and thus, decreases the entrant’s expected profitability, which in turn deters entry. Our research has important implications especially for emerging markets given that the lack of management talent is a particularly severe problem among local firms in emerging markets and multinational companies pioneer in the emerging markets with great market expansion opportunities have to face the potential entry of local companies.     

Can Banning Spatial Price Discrimination Improve Social Welfare?

We analyze a two-stage sequential-move model of location and pricing to identify firm’s location, output, and welfare. We consider two pricing regimes (mill pricing and spatial price discrimination) and, unlike previous literature, allow in each of them for a non-uniform population density, non-constant location costs (i.e., the setup costs, such rental costs and land prices, differ by firm’s location), and endogenous market boundaries. Under constant location costs, our results show the firm locates at the city center under both mill and discriminatory pricing, and that output is larger under spatial price discrimination. Welfare comparisons are, however, ambiguous. Under non-constant location costs, we find the optimal location can move away from the city center, and does not coincide across pricing regimes. Compared with mill pricing, spatial price discrimination generates a higher level of output. We also find that welfare is higher (lower) under mill than under discriminatory pricing when transportation rates are low (high, respectively).     

A Welfare Evaluation of History-Based Price Discrimination

We design an asymmetric duopoly model with inherited market dominance such that the dominant firm and the smaller firm can price discriminate based on consumers’ purchase history. We show that uniform pricing softens competition leading to higher industry profits than under history-based pricing. Consumers benefit from history-based price discrimination unless the switching cost is sufficiently high and the inherited degree of dominance is sufficiently weak. A ban on history-based pricing would typically introduce a distributional conflict between consumers and producers. Finally, we establish that the gains to industry profits associated with uniform pricing exceed the associated losses to consumers.     

Entry mode selection and its impact on an incumbent supply chain coordination

This paper considers a supply chain where a manufacturer sells its product through a retailer. In such a market, a potential entrant can make a substitute product by imitating the incumbent's product and then sells it to the common market with one of three alternative entry modes: (i) selling through the incumbent's retailer, (ii) selling through another independent retailer, or (iii) selling directly to consumers. Faced with the entrant's entry, the manufacturer has managed to offer a value-added service to add to its product's value at a cost. We investigate the entrant's optimal entry mode when the manufacturer offers profit-sharing contracts to the retailer and when it does not, and discuss the impact of the potential invader's entry on the incumbent firms' performances. The results show that: (1) the entrant sells directly to consumers when faced with weak value competition, and sells through another retailer against fierce value competition. (2) If the value competition is relatively fierce and the efficiency of the value-added service is relatively high as well, the incumbent firms can benefit from the new entry. (3) A profit-sharing contract, as a coordination policy, can fully coordinate the incumbent supply chain no matter whether there exists a potential entrant or not, yet the entry can affect the distribution of the profits between the incumbent manufacturer and retailer.     

Challenges of Existing in a Market as a Small,Low-quality Producer

This paper explores the strategy of a small firm entering a monopolist's market thereby creating a duopoly market. The small firm avoids competing with the larger, incumbent firm by producing a lower-quality product at a lower price. The model here establishes an equilibrium under a specific set of assumptions and examines how exogenous factors affect prices, qualities and profits. Although the strategy might allow the firm to enter and earn a profit, the market conditions may make this position much less desirable to that of the large firm for several reasons. In the case explored here where tastes for the product are uniformly distributed, the small firm's profit is about six percent of that of the larger firm. The smaller firm is more severely threatened by the entrance of a third firm. Furthermore, even if the smaller firm can cut costs, its position is not well suited for exploiting such increases in efficiencies.     

Productivity, terms of trade and the ‘home market effect’

This paper analyzes the international transmission and welfare implications of productivity gains and changes in market size when macroeconomic adjustment occurs both along the intensive margin of trade (changes in the relative price of existing varieties of tradable goods) and the extensive margin (creation and destruction of varieties). We draw a distinction between productivity gains that enhance manufacturing efficiency and gains that lower the cost of firms' entry and of product differentiation. Countries with lower manufacturing costs have higher GDP but supply their products at lower international prices. Instead, countries with lower entry costs supply a larger array of goods at improved terms of trade. Output growth driven by demographic expansions, as well as government spending, is associated with an improvement in international relative prices and firms' entry. While trade liberalization may result in a smaller array of goods available to consumers, efficiency gains from deeper economic integration benefit consumers via lower goods prices. The international transmission mechanism and the welfare spillovers vary under different asset market structures, depending on trade costs, the elasticity of labor supply, and consumers' taste for varieties.